JOTO's $7 waterproof phone case is a number one bestseller on Amazon and a must-have at the beach.

This universal pouch fits any smartphone up to 6 inches across diagonally.

Clear on both sides, the case also maintains full touchscreen functionality which means you can do everything from texting your friends to posting on Facebook without worrying about getting your phone wet.

Prynt's innovative phone case lets you print photos you take with your iPhone in seconds.

Even better, you can use the Prynt app to unlock a hidden video clip inside each picture you print — bringing your memories to life, Harry Potter-style. It's kind of like watching Live photos animate in a physical photo instead of on your iPhone.

If you've been thinking about getting a GoPro, you should check out Campark's $50 waterproof action cam first.

This camera has a wide-angle, 170-degree lens and can record video in 4K Ultra HD. It also comes with a waterproof case that lets you capture memories underwater — perfect not just for the beach but for any snorkeling or diving adventure in your future.

According to its many reviews on Amazon, this speaker delivers booming, 360-degree sound with deep bass anywhere outdoors. "Designed for adventure," the Boom 2 speaker has 15 hours of battery life when fully charged and up to 100 feet of Bluetooth wireless range.

It can also be submerged in water up to 3 feet deep for up to 30 minutes.

For a much more affordable alternative, try AYL's waterproof speaker.

While AYL's speaker can't be submerged in water, it's waterproof enough that it'll survive an accidental drop in water. It's also designed to protect against steam, so you can use it in the shower, in the rain, or by bodies of water like the ocean.

Anker's PowerPort Solar is the number one bestseller in solar-powered battery chargers on Amazon.

This solar-powered charger is easy to use. Just lay the solar panels out in the sun or attach it to your backpack as you travel, walk, or hike outside. Then, plug in your smartphone or tablet whenever you want.

WakaWaka's solar-powered charger charges your phone to 100% in two hours — and its proceeds go to a great cause.

WakaWaka's solar-powered charger reaches full battery after 12 to 24 hours in the sun.

More importantly, when you buy a WakaWaka charger, you can take part in the company's Share The Sun initiative. Enter your unique purchase code to help deliver solar light to families without access to electricity.